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VII/260/dr7qso The SDSS-DR7 quasar catalog (Schneider+, 2010)
The SDSS quasar catalog V, DR7 (table2 of the paper) (105783 rows)
  recno=22324
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ColumnValue  Explain   (UCD)
_RAJ200009 02 42.5412 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000+30 23 04.574 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195008 59 41.1354 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950+30 34 56.689 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon194.8308184 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat+40.2957351 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
22324recno 22324  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

SDSS090242.54+302304.5  SDSS DR7 object designation (1) (linked to details from SDSS site) (Note)   (meta.id;meta.main)
z 0.5892  SDSS redshift (src.redshift)
umag 18.879 mag BEST SDSS u band PSF magnitude (Note 2)   (phot.mag;em.opt.U)
e_umag 0.024 mag Error in umag (stat.error;phot.mag;em.opt.U)
gmag 18.483 mag BEST SDSS g band PSF magnitude (Note 2)   (phot.mag;em.opt.B)
e_gmag 0.028 mag Error in gmag (stat.error;phot.mag;em.opt.B)
rmag 18.588 mag BEST SDSS r band PSF magnitude (Note 2)   (phot.mag;em.opt.R)
e_rmag 0.015 mag Error in rmag (stat.error;phot.mag;em.opt.R)
imag 18.359 mag BEST SDSS i band PSF magnitude (Note 2)   (phot.mag;em.opt.I)
e_imag 0.019 mag Error in imag (stat.error;phot.mag;em.opt.I)
zmag 18.497 mag BEST SDSS z band PSF magnitude (Note 2)   (phot.mag;em.opt.I)
e_zmag 0.037 mag Error in zmag (stat.error;phot.mag;em.opt.I)
Au 0.132 mag Galactic extinction in u filter (Note 3)   (phys.absorption)
logHI 20.380 [cm-2] Log of Galactic HI column density (phys.columnDensity;pos.galactic)
F20cm  mag FIRST 20cm peak flux density (Note 4)   (phot.flux.density;em.radio.750-1500MHz)
w_F20cm 0.000  Signal-to-Noise ratio for F20cm (stat.weight)
sepR 0.000 arcsec SDSS/FIRST separation (pos;arith.diff)
logX  [ct/s] RASS BSC/FSC full band count rate (Note 5)   (phot.count;em.X-ray)
w_logX 0.000  Signal-to-Noise ratio for logX (stat.weight)
sepX 0.000 arcsec SDSS/RASS separation (pos;arith.diff)
Jmag 17.037 mag 2MASS J band magnitude (Note 6)   (phot.mag;em.IR.J)
e_Jmag 0.172 mag Error in Jmag (stat.error;phot.mag;em.IR.J)
Hmag 16.372 mag 2MASS H band magnitude (Note 6)   (phot.mag;em.IR.H)
e_Hmag 0.222 mag Error in Hmag (stat.error;phot.mag;em.IR.H)
Kmag 15.280 mag 2MASS KS band magnitude (Note 6)   (phot.mag;em.IR.K)
e_Kmag 0.166 mag Error in Kmag (stat.error;phot.mag;em.IR.K)
sepIR 0.338 arcsec SDSS/2MASS separation (pos;arith.diff)
f2M 13   [0/26] 2MASS flags (Note 7)   (meta.code.error)
iMAG -24.134 mag Absolute SDSS i band magnitude (Note 8)   (phys.magAbs;em.opt.I)
D(g-i) 0.024 mag Offset of quasar (g-i) from distribution (g-i) mode (Note 9)   (stat.fit.residual)
Mph 0   [0/1] Morphology flag (1=extended source) (src.class.starGalaxy)
S1 1   [0/1] SCIENCEPRIMARY flag (1=SCIENCEPRIMARY) (meta.code)
mode 1   [0/3] SDSS MODE flag for blends, overlapping scans (Note 10)   (meta.code.class)
utf 1   [0/1] Uniform target selection flag (Note 11)   (meta.code)
TflagB00000003  BEST target selection flag (hexadecimal) (meta.code)
Lz 1   [0/1] Low-z Quasar, color selection only, target flag (1=targeted as Low-z Quasar) (meta.code)
Hz 1   [0/1] High-z Quasar, color selection only, target flag (1=targeted as High-z Quasar) (meta.code)
fR 0   [0/1] FIRST target flag (1=targeted) (meta.code)
fX 0   [0/1] ROSAT target flag (1=targeted) (meta.code)
fS 0   [0/1] Serendipity target flag (1=targeted) (meta.code)
f* 0   [0/1] Star target flag (1=targeted) (meta.code)
fG 0   [0/1] Galaxy target flag (1=targeted) (meta.code)
run 3635  SDSS imaging run number for photometric measurements (meta.id)
MJD-im 52668 d Modified Julian Date of imaging observation (time.epoch)
MJD-sp 52974 d Modified Julian Date of spectroscopic observation (time.epoch)
Plate 1590  Spectroscopic Plate number (meta.id;instr.plate)
Fiber 97  Spectroscopic Fiber number (meta.id)
rerun 41  SDSS Photometric Processing Rerun number (meta.id)
Cam 3   [1/6] SDSS Camera Column number (meta.id;instr)
Frame 170  SDSS Frame number (obs.field)
obj 67  SDSS Object number (meta.id)
Tflag00000003  TARGET target selection flag (hexadecimal) (meta.code)
LzT 1   [0/1] Low-z Quasar, color selection only, target flag (1=targeted as Low-z Quasar) (meta.code)
HzT 1   [0/1] High-z Quasar, color selection only, target flag (1=targeted as High-z Quasar) (meta.code)
fRT 0   [0/1] FIRST target flag (1=targeted) (meta.code)
fXT 0   [0/1] ROSAT target flag (1=targeted) (meta.code)
fST 0   [0/1] Serendipity target flag (1=targeted) (meta.code)
f*T 0   [0/1] Star target flag (1=targeted) (meta.code)
fGT 0   [0/1] Galaxy target flag (1=targeted) (meta.code)
uTmag 18.890 mag TARGET SDSS u band PSF magnitude (Note 2)   (phot.mag;em.opt.U)
e_uTmag 0.031 mag Error in uTmag (stat.error;phot.mag)
gTmag 18.489 mag TARGET SDSS g band PSF magnitude (Note 2)   (phot.mag;em.opt.B)
e_gTmag 0.030 mag Error in gTmag (stat.error;phot.mag)
rTmag 18.580 mag TARGET SDSS r band PSF magnitude (Note 2)   (phot.mag;em.opt.R)
e_rTmag 0.014 mag Error in rTmag (stat.error;phot.mag)
iTmag 18.353 mag TARGET SDSS i band PSF magnitude (Note 2)   (phot.mag;em.opt.I)
e_iTmag 0.018 mag Error in iTmag (stat.error;phot.mag)
zTmag 18.472 mag TARGET SDSS z band PSF magnitude (Note 2)   (phot.mag;em.opt.I)
e_zTmag 0.038 mag Error in zTmag (stat.error;phot.mag)
prevIDSDSS J090242.54+302304.5  Previously published name (Note 12)   (meta.id)

BHBH  Display the black hole mass estimates from Shen et al. 2008, Cat. J/ApJ/680/169 (meta.ref.url)
DR7DR7  Display the detailed photometry from SDSS-DR7 (Cat. II/294) (meta.ref.url)
2MASS2MASS  Display the 2MASS data (meta.ref.url)
XX  Display the X-ray sources closer than 1' (meta.ref.url)
RadioRadio  Display the radio sources closer than 1' (meta.ref.url)

RAJ2000135.67725 deg (i) Right Ascension in decimal degrees (J2000) (pos.eq.ra;meta.main)
DEJ2000+30.38460 deg (i) Declination in decimal degrees (J2000) (pos.eq.dec;meta.main)
  
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